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Cornerstone · Grades 3–5 Keystones #1 4 May 2025
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Keystones — Cornerstone

Five GCSE retrieval questions · 4 May 2025 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 1⁄7 + 2⁄7

    Answer: 3⁄7
  2. 2. Algebra

    What is the next term? 8, 24, 72, 216, ...

    Answer: 648
  3. 3. Geometry

    Opposite = 19cm, adjacent = 9cm. Calculate the angle

    Answer: 64.7°
  4. 4. Ratio

    Simplify: 24:8:24

    Answer: 3:1:3
  5. 5. Statistics

    Find the mean of: 16, 13, 9, 12, 9

    Answer: 11.8

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